simplify autogen.sh script

Problem: after autogen.sh, configure, then make triggers another configure.

Simplify autogen.sh by having it just call autoreconf, like other projects.

autogen.sh

@@ -1,17 +1,4 @@
 #!/bin/sh
-
-echo "Running aclocal ... "
-aclocal -I config
-#echo "Running libtoolize ... "
-#libtoolize --automake --copy 
-echo "Running autoheader ... "
-autoheader
-echo "Running automake ... "
-automake --copy --add-missing 
-echo "Running autoconf ... "
-autoconf
-echo "Cleaning up ..."
-mv aclocal.m4 config/
-rm -rf autom4te.cache
-echo "Now run ./configure to configure diod for your environment."
-
+echo "Running autoreconf --force --verbose --install"
+autoreconf --force --verbose --install || exit
+echo "Now run ./configure."